Guys should I break up with my boyfriend?

General knowledge; we’re both 17 years old, and have just started dating a few weeks ago.

We haven’t gotten intimate yet, nor did anything like that.

My boyfriend just told me this thing he had with his ex, a period of time in which he really loved and treasured her, and then immediately after he would treat her the same way but internally wishing she’d break up with him and leave him alone because he’d gotten tired of her..

And now, he told me this might happen with me too and he’s afraid it will, because if it will he said he wouldn’t tell me, and also that he’s got these periods of “rage” (as he said it), in which he goes “crazy”, wanting to shave his eyebrows, wanting to punch everyone, grabbing his own hair….

I should also say he treats me with a lot of care and he’s really loving.

I wanna be there for him, and I said I will but that he needs to tell me if he feels like this, but I don’t know if I made the right call and I’m very worried. What do yall think?